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A029893
Number of graphical partitions with up to n parts (?).
1
1, 2, 4, 10, 24, 68, 198, 656, 2112
OFFSET
1,2
REFERENCES
R. A. Brualdi, H. J. Ryser, Combinatorial Matrix Theory, Cambridge Univ. Press, 1992.
FORMULA
Calculated using Cor. 6.3.3, Th. 6.3.6, Cor. 6.2.5 of Brualdi-Ryser.
CROSSREFS
A possible duplicate of A028506.
Sequence in context: A309504 A148088 A028506 * A372123 A148089 A363065
KEYWORD
nonn,more,obsc
AUTHOR
torsten.sillke(AT)lhsystems.com
STATUS
approved